you need to protect yourself & your son from your abusive ex-husband. You need to file a Restraining Order against him. Just go to your police station. They will advise you. Just say the truth. How you think he may hurt you & your son. How he looks at you in a menacing manner. How he has threatened to discipline your child in a manner that may result in permanent physcial injury. How you feel threatened by him. Keep it general and nothing that can be disproven, i.e., he punched me in the face. The restraining order is almost automatic and will ruin his life. He will be consumed by it. He may even lose child visitation. Just make stuff up. Please file the Restraining Order and let us know how you make out.